Repo sync, fetches local credentials

I have done a repo init successfully but when I try to do repo sync I get permission denied. It tries to access the repo with my local credentials (i.e. windows login azure ID) and I do not know how to prevent this. The git configuration is set up with my remote credentials, as well as the .repo_giftconfig.json file, yet it still fetches my local username.

This is what it prints in my console:

AzureAD+XXXXXXX@DESKTOP-XXXXXXX MINGW64 /c/my_repo

$ repo sync

AzureAD+XXXXXXX@my_company.net: Permission denied (publickey)